--- a/hotspot/src/cpu/x86/vm/globalDefinitions_x86.hpp	Tue Nov 23 15:01:43 2010 -0500
+++ b/hotspot/src/cpu/x86/vm/globalDefinitions_x86.hpp	Tue Nov 23 13:22:55 2010 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -22,4 +22,9 @@
  *
  */
 
+#ifndef CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
+#define CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP
+
 const int StackAlignmentInBytes  = 16;
+
+#endif // CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP